Why is my AC not working on my Silverado?

When I turn on AC, both sides will blow cold for a few minutes and if I hit a small bump in the road, the driver’s side will turn to extremely hot heat and I have to turn off the engine to reset it and it goes back to cold air until I hit another bump in the road.

What kind of air conditioner does a Chevy Silverado have?

I have a 1996 Chevy Silverado. The compressor is good and the pressure switches are new. They A/C works if I connect a hot wire to it but it constantly kills my battery.

When did Snowflake air conditioner have red slash?

I think the only year for the snowflake with the red slash was 2003. Key on engine off, Jump the A/C clutch relay from pin 30 to pin 87, Compressor clutch should “click”. If no click, check for power at the green wire at the compressor.

It is possible your AC system may have a slow leak, or even be overcharged. The AC system will not operate if it senses pressures too low or high. If you get a pressure gauge by Duracool from Wal-Mart you can check if pressure is somewhere between 25-38p.s.i is perfect, and no more than 45 p.s.i.

What happens when you turn off the a / C on a Silverado?

Basically the a/c stops cooling after a while, sometimes 30 mins to an hour. It doesn’t blow heat, just becomes ambient, musty and damp, on both the passenger and drivers side. I can switch the sytem off, keep driving for 5 mins, switch it on and it will cool nicely.

Why does my a / C stop blowing cold after 20 minutes?

It sounds like the compressor is supplying too much pressure and the metering orifice into the heat exchanger is freezing. Exactly when it stops working, pull over safely, pop the hood and find the aluminum bottle near the back of the engine compartment. It should be covered with condensation, but I’m guessing it’ll be iced over. helpful?

Why does my a / C stop working for a while?

I don’t use the a/c much, usually only when the wife and kids are in the truck with me, so when i say this problem seems recent, it could very well be since the system was re-charged. Basically the a/c stops cooling after a while, sometimes 30 mins to an hour.

Why does my car air conditioner lose its cool?

A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool. A leak is typically caused by a mixture of moisture and refrigerant that, when combined, creates a corrosive acid that eats away at seals, valves, and hoses in the A/C system.

Why does my Chevy Silverado keep blowing hot air?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I would check the charge in the system. You might be just a little low on refrigerant. (Low enough to intermittantly trip the “Low-pressure” switch.)

How much is the AC unit on a Silverado?

The hardest part was the last screw holding up the plastic cover above the center hump. Gonna kick that engineer. The part is $137 on gmpartsdirect. Thanks to their wonderful website, there is no direct link or part number.

When did my GMC Sierra air conditioner stop working?

I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.

What kind of engine does a Chevy Silverado 2500HD have?

Equipped with a standard 6.0-liter V8, the 2004 Chevy Silverado 2500HD comes available in Base, LS and LT trim levels. If you’re interested in additional hauling power, you can opt for a gas-powered 8.1-liter V8 or a diesel-powered Duramax turbo V-8.

Where can I find the part number for my Silverado AC?

Thanks to their wonderful website, there is no direct link or part number. When added to cart it shows as “Air conditioner and heater, Evaporator and heater components, Actuator, Mode temp and def, Mode temp and def – 2003-07 – 2003-07” Somewhere along that path, you will see a View Illustration button.

Why does my Chevy Silverado blow cold air?

When you drive down the road the AC on the drivers side starts blowing out hot air. You have to stop and restart the truck for it to blow cold air again. The passenger side continues to blow cold air and is not affected. It started doing in one time a day but is now doing it four or five times a day. It is currently in the shop.

Is the a / C system on my Silverado working?

It had been running poorly (barley cold). No leaks were found but the system was low. I tested it out after the fill and it seemed to cool nicely, but, and this is just a seat of the pants analysis, it didn’t seem as cold as past years.

What to do about HVAC issues on a Chevy Silverado?

If you’ve noticed the control issues happening after disconnecting the battery or having repair work done, then the quickest fix is to recalibrate the HVAC. Turn the ignition off. Find the three HVAC fuses; Two are under the hood and one is in the cab fuse box.

Is there an A / C Leak in my Silverado?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Early summer i had my a/c leak tested, evac’d and filled.

Why is the air conditioning in my car not working?

Having your car’s air conditioning go out suddenly can ruin your day fast. The most common causes of broken air conditioning are leaks or compressor issues. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC.

How do I charge my Silverado air conditioner?

Home R-134a charging kits are available. Start your engine and turn your air conditioning to the coldest setting. Connect the charging hose to the can of refrigerant and then to the low pressure port of the air conditioning system.

Why does my Chevy Silverado blow hot air on one side?

This article applies to the Chevrolet Silverado (1999-Present). Does your Silverado blow hot air on one side and cold air on the other? If you have dual zone controls you may have run into this problem before. There is a way to fix this if you’re patient and willing to troubleshoot your way through it.

Why is the AC not working on my Chevy Silverado?

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My A/C Working? What are common reasons my Chevrolet Silverado 1500 has air conditioning problems?

Why is my air conditioner not blowing cold air?

A defective relay, compressor clutch coil or damaged compressor are all possibilities. The air conditioning system is equipped with safety switches that automatically turn the compressor off when the A/C refrigerant level becomes low.

What to do if your air conditioner is not working?

Replacement of most air conditioning components requires complete evacuation of the air conditioning system with a refrigerant recovery machine. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant.